WELCOME! QUARANTINE STATUTES AND RULES

Awinash P. Bhatkar, Ph.D. Coordinator for Biosecurity & Agriculture Resource Management Texas Administrative Code

Chapter 19, Subchapter L Weevil Quarantine

§19.120 Quarantined Pest The quarantined pest is the Pecan Weevil, caryae (Horn).

______Source Note: The provisions of this §19.120 adopted to be effective September 2, 1996, 21 TexReg 7806. §19.121 Quarantined Areas The quarantined areas are:

(1) Eddy and Chaves Counties, New Mexico, and all other states and districts of the United States except Arizona, California, and the remainder of New Mexico;

(2) all areas in the State of Texas except the counties of El Paso, Hudspeth, Culberson, Jeff Davis, and Presidio. ______Source Note: The provisions of this §19.121 adopted to be effective September 2, 1996, 21 TexReg 7806. (a) General. Quarantined articles originating from quarantined areas are prohibited entry into or through the free areas of Texas listed in this subchapter, except as provided in subsections (b) and (c) of this section.

(b) Exemptions. Movement of quarantined articles to a sheller or processing plant for treatment or further processing may be granted upon departmental review. (c) Exceptions. All quarantined articles must be free of husk and accompanied by a state certificate certifying that the products were treated in the following manner: (1) dipped in water at a temperature of at least 140 degrees Fahrenheit for 30 seconds. It is not necessary to dip the parts of a tree that will be below ground level; or (2) held at a temperature of 0 degrees Fahrenheit for a period of 168 consecutive hours or longer after the entire lot has reached the desired temperature; or (3) alternate treatments may be approved upon departmental review. ______Source Note: The provisions of this §19.123 adopted to be effective September 2, 1996, 21 TexReg 7806. Pecan Weevil Quarantine (Curculio caryae) • All , pecan, walnut plants or parts, except extracted meat (free of husk) • Exceptions: – Hot water treated (140o F for 30 seconds) – Cold treated (0o F for < 168 hours) • Commodities from CA, AZ,and NM (except infested Eddy and Chaves counties)

Pecan weevil damage

Larvae are 3/5 inch cream colored, legless grubs with red heads; 3 to 4 grubs may be found in a single nut.

Laval emergence hole in a nut